Water-tube boiler



(No Model.)

Gr.l SGHISLER.

WATER TUBE BOILBR.

No. 569,239. Patented Oct. 13, 18967.

UNITED STATES PATENT OEEICE.

GEORGE SOHISLER, OF MANSFIELD, OHIO.

WATER-TUBE BOILER.

SPECIFICATION forming part of Letters Patent No. 569,239, dated October13, 1896a Application iled May '7, 1396l Serial No. 590,616. (No model.)

To all whom, it may concern:

Be it known that I, GEORGE SoHIsLER, a citizen of the United States,residing at Manslield, in the county of Richland and State of Ohio, haveinvented certain new and useful Improvements in Tater-Tube Boilers; andI do declare the following to be a full, clear, and exact description ofthe invention,such as will enable others skilled in the art to which itappertains to make and use the saine, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this speciiication.

My invention relates to improvements in water-tube boilers; and theobjects of my invention are, iirst, to construct a boiler wholly ot'tubes; second, to so arrange the tubes and connect them together thatthe heat from the furnace will have a direct action upon all thewater-tubes; third, to so connect and arrange the tubes that a perfectcirculation is 0btained, and, fourth, to make a cheap, durable, andeicient means for the purpose stated.

In the accompanying drawings, Figure l is a side elevation of myimproved boiler, showing the general construction of one side of thesame, also showing the boiler set in position for operation. Fig. 2 is atop plan view of rear end of boiler, taken in line ct a, Fig. l, showingthe general construction and arrangement of the tube connections at therear end of the boiler, also grate-bars and back wall ordeilecting-plate. Fig. 3 is a transverse view taken in line Qc, Fig. l,showing the water tube connections connected together at the front endof the boiler, also showing the arrangement of the water-tubes throughthe center of the boiler. Fig. i is a longitudinal sectional view of oneof the side tube connections enlarged, also showing broken tubesconnected.

Similar letters refer to similar parts throughout the several views.

In the accompanying drawings, A indicates the side tube connection,which is composed of a hollow cast case B, provided upon one side withthe threaded openings O. One end ofthe said connection is provided withthe T connection D. This may be attached to or form part of the tubeconnection. The said connection is used at the front and rear end oftheboiler. In the front the connections are placed vertical and at the rearend horizontal, as'shown in Fig. l. Iliave shown in the said connectionnine -threaded openings; but any number may be used, according to thesize of the boiler required.

E indicates tubes threaded upon both ends. The front ends are screwedwithin the threaded openings O in the tube connection A, and areprovided upon their rear ends with the elbows F. The vertical tubes Gare also threaded upon both ends, one end right-hand and the oth erleft-hand threads. The threaded openin gs O-in the tube connection A arealso left-hand threads, so that the vertical tubes can be connected ortaken out at any time when required. The tubes E and G may be of anylength, so as to construct a boiler of any size required. The differencein the length of tubes to construct this side combination would be thedifference from center to center of the threaded openings O. Thiscombination of tubes forms each side of the boiler.

I-I indicates tubular tube connections which are similar in constructionto the tube connection A, but are shorter, six threaded openings onlybeing shown. The openings I are formed upon each edge of the casting andin line with each other at thetop. The object is to place the tubes asnear together as possible to form the top and rear end of the boiler.The tubes J are placed one below the other and at opposite edges of thecasting. The object is to allow the heat to pass around the water-tubes.The said center tube connections are provided upon one end with theflanged T and are connected the saine as the side tubes. rlhe object ofusing less tubes in the center connections is for the purpose of forminga space for the furnace above the grate K. W'hen each section of tubesis connected together, as shown in Fig. l, and the T connections arebolted together by the bolt L, there is a connection between all thepipes and connections and a perfect circulation of the water through thesame.

M indicates threaded anged rings which are bolted to the T connectionsD, and in which are secured the discharge-pipes N for conveying water toany portion of the building.

O indicates the return-pipes for the pur- IOO lower ends ofthe tubeconnections H. The,

said plate also forms the end of the ash-pit. lVhen all the sections ofpipes are connected, as shown, they are then covered upon the outsidewith asbestos covering and then covered with sheet-iron or brick wall.The front end is provided with a cast front, with suitable doors, as arenow in general use.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, :is-

The water-tube boiler herein shown and described, consisting of thecasing or shell, the grate arranged therein, the inclined bridgewall orplate at one end of the grate, the vertical castings at the front end,the horizontal sections at the rear, the iianged connections secured toeach other and connected with the said castings, the horizontal andvertical water-tubes arranged in series of tubes at the side, thedepending or vertical short intermediate pipes arranged above the grate,and the horizontal intermediate pipes communieating or integral with thevertical intermediate pipes and arranged reversely on each side thereof.

In testimony whereof I affix my signature in presence of two Witnesses.

GEORGE SCI-IISLER. Titnesses L. J. MCCRAY, T. Y. MCORAY.

